DE19600119C2 - Portable subscriber terminal for mobile radio - Google Patents

Description

The invention relates to a portable subscriber terminal for mobile radio (Mobile phone) comprising a control panel in which the listening and speaking components, a transmitter and receiver unit and a power supplier supply unit are arranged, and a releasable communication onpart, which is in wireless connection with the control unit and in a communication device for connection to a cellular network and a separate power supply unit are included, the in the control panel arranged transmitter a short range transmitter Transmission power is, the transmission signals one in the communication part Arrange arranged receiving unit, which receiving unit a powerful high-frequency transmitter (transponder) for transmission the transmission signals is connected downstream into the mobile radio network.

Such a mobile radio telephone is for example from DE 43 30 436 A1 known. This mobile phone uses a hearing and control unit Speech component and a receive-send component. Both com components are by latching in and out using a locking device can be coupled or separated from one another. In the of each other separate use of this cellular phone communicate with the the components wirelessly with each other, the transmission power of the hearing and Speech component is so low that those emerging when sending electromagnetic waves harmless to the human organ are. The actual integration of this mobile phone takes place then via the receive-send component that has a corresponding powerful transmitter (transponder) includes. The one as communication device provided receive-transmit component is in operation the mobile phone expediently at a distance from the telephone person placed so that the organism of this person not immediately adjacent to that of the receive-send  component associated antenna is located. The risk of damage exposure to magnetic waves is therefore considerably minimized.

In the subject of this publication, the concept of the well-known, cordless telephone communicating with a basic device Cellular area expanded. Ultimately, this device is only the In the case of cordless telephones, contact plugs arranged on the base device by means of a transceiver component suitable for mobile radio continues.

The wireless transmission of the individual transmission signals from one unit on the other hand, it is usually done in an analog way. Cellular phone However, networks are characterized by the fact that their signals are digital be transmitted. The digital signal transmission enables in addition to pure speech signal transmission also a transmission of information onsignalen, such as the written message transmission. At her Conventional mobile telephones will send messages such as requests to call back, the user is shown on the display. However, there is one further transmission of this data by analogy from the communitiy kationseinrichtung towards the control panel, so this is a transmission Formations not possible without additional equipment.

The Erfin is based on this state of the art dung, hence the task, a portable subscriber terminal to propose for mobile communications, which advances the advantages of one has acceptable communication facility, but without additional electronic components also receive information signals allowed.

This object is achieved in that in the loading serve part arranged receiving unit for immediate reception of signals directed from the cellular network to the cellular phone is seen.

The inventive separation of only the trans ponders from the control unit are in the listening and speaking compo nment entered signals initially over a close-range food the lower transmission power to the communication device  from which this is then sent to the. via a powerful transponder Cellular network are transmitted, however, reception is from the Cellular network to the cellular phone signals directly and un indirectly possible from the receiving unit arranged in the control panel. The electromagnetic fields received by a cellular phone genes signals are so weak that they the human organ must not be able to influence. In addition, the di gital reception of mobile radio signals ensures that without additional Measures also display information signals on the control panel that can.

Due to the possibility to close the communication part from the control unit remove, being between the control unit and the communication part A wireless connection with a low transmission power can exist Use of the mobile phone without losing the possibilities information to be received also takes place in such areas, in who would otherwise be prohibited from operating a cell phone.  

The invention is illustrated by the drawings and the following Description of an embodiment according to the Claims explained in more detail.

It shows

FIG. 1 shows the mobile phone in the coupled state;

Figure 2 shows the separate transponder unit of the mobile phone.

Fig. 3 shows the separate handset part (control unit) of the mobile phone.

It should be noted that the drawings used the schematic structure of the mobile phone clarify and therefore no claim to exact accuracy of size, shape, design and the final proportions of the mobile phone.

The embodiment in particular appears to be expedient Claim 2 in which the transponder part on acceptance or Putting the phone into operation in a case or another possible holder of the mobile phone remains and thus one sufficient distance between the strong transponder and the Head of the user is given from the outset.

The mobile phone consists of two parts when disconnected. Fig. 1 shows the mobile phone in the coupled state.

The separate transponder unit illustrated by FIG. 2 technically consists of a receiver for the signals of the handset, a power supply part (battery) for the transponder unit and the actual transponder part with the associated dipole antenna, which is installed as space-saving as possible.

Fig. 3 shows the separate handset part of the mobile phone. Technically, this receiver part consists of the receiver of the mobile phone, a power supply unit (battery) and a weak transmitter for radioing the receiver of the transponder with a minimal dipole antenna (possibly inside).

To connect the two subunits of the mobile phone a range of mechanical connection mechanisms or couplings conceivable.

Those explained by the drawings and the description Embodiments of the mobile phone prevent the disconnected Condition the emergence of the extreme force field in the head area.

Claims (4)

1. Portable subscriber terminal for mobile radio (mobile radio telephone) comprising an operating part in which the hearing and speaking components, a transmitting and receiving unit and a power supply unit are arranged, and a releasable communication part, which is in wireless connection with the operating part and in which To connect to a mobile radio network, a communication device and its own power supply unit are included, the transmitter arranged in the operating part being a short-range transmitter with low transmission power, the transmission signals of which act on a receiving unit arranged in the communication part, which receiving unit is a powerful high-frequency transmitter (transponder) for transmitting the transmission signals in the mobile radio network is connected downstream, characterized in that the receiving unit arranged in the control unit is provided for the direct reception of the signals directed from the mobile radio network to the mobile telephone. 2. Device according to claim 1, characterized in that the Control unit with the communication part through a plug connection can be coupled. 3. Apparatus according to claim 2, characterized in that the Coupling of the control unit and communication part is done frictionally. 4. Device according to one of claims 1 to 3, characterized in net that the communication part a bracket for carrying the has connected mobile telephones.